Lightweight fuel pump locking chuck

Abstract

The utility model discloses a lightweight fuel pump locking chuck in the field of fuel tank fuel pump installation, which comprises an annular chuck body, the periphery of the chuck body is provided with a plurality of groups of positioning components arranged along the circumferential direction, and each positioning component comprises an installation notch, an installation driving part and a locking part which are sequentially and adjacently arranged along the circumferential direction of the annular chuck body. And a locking bulge is arranged on the locking part. The weight of the locking chuck can be reduced, the size of the chuck is reduced, and the requirements for light weight and simplification are met.

Description

TECHNICAL FIELD

[0001] The utility model belongs to the field of oil tank fuel pump installation, in particular to a kind of light weight fuel pump locking chuck. BACKGROUND

[0002] In prior art, there is an oil tank fuel pump locking device, with patent application number: CN201621291168.3; application date: 2016.11.29; including mutually matched fixing ring and locking ring, the fixing ring is provided with a plurality of installation holes that can pass through oil tank body along the circumferential direction, the lower part of fixing ring is provided with annular support platform, the upper part of fixing ring is provided with a plurality of pressing plates that are in close contact with oil tank body along the circumferential direction, clamping plate is arranged between adjacent pressing plates, the clamping plate is composed of arc-shaped part and horizontal part that is parallel to the upper surface of fixing ring, the horizontal part is inclinedly arranged on the inner side, the locking ring is provided with a plurality of clamping grooves along the circumferential direction, the clamping grooves are arranged corresponding to clamping plate, the clamping groove is composed of small-diameter groove and large-diameter groove that can pass through horizontal part, the outer periphery of locking ring is provided with a plurality of installation grooves.

[0003] The fixing ring in the device is embedded on the oil tank body by injection molding, the locking ring can rotate and cooperate with the fixing ring, which can reliably lock and install the fuel pump on the oil tank, but the problem is that: the current locking ring is used as the outer chuck platform of fuel tank, the weight of current mainstream product is about 245 grams, and the outer diameter of part is 172mm, which is heavy and large in size, and does not meet the requirements of light weight and simplification. UTILITY MODEL CONTENTS

[0004] The utility model aims to provide a kind of light weight fuel pump locking chuck, which can reduce the weight of locking chuck, simplify the size of chuck, and realize the requirements of light weight and simplification.

[0005] The utility model is realized as follows: a kind of light weight fuel pump locking chuck, including annular chuck body, the outer periphery of chuck body is provided with a plurality of groups of positioning components arranged along the circumferential direction, the positioning component includes installation gap, installation driving part and locking part sequentially arranged along the circumferential direction of annular chuck body, locking part is provided with locking protrusion.

[0006] The utility model discloses a locking chuck is coaxial installation on the fixed insert ring of oil tank, when installing, first the each installation gap of chuck body is placed corresponding with the each claw of fixed insert ring, then clockwise rotation locking chuck, make each locking portion of chuck body circumferential rotation to the each claw below of fixed insert ring, the locking projection of locking portion corresponds and is clamped into the locking recess of the lower side of corresponding claw, locking chuck is clamped and installs fuel pump on the oil tank, completes the installation of fuel pump.

[0007] As a further improvement of the utility model, the locking portion of each positioning assembly on the chuck body is arranged in abutment with the installation gap of the adjacent positioning assembly.

[0008] As a further improvement of the utility model, the chuck body is arranged in matching with the fixed insert ring installed on the oil tank body, the fixed insert ring is provided with a plurality of claws distributed uniformly in the circumferential direction, the cross section of the claw is L-shaped, the lower side of the horizontal part of the claw is provided with a locking recess corresponding to the locking projection, and each locking portion is arranged in one-to-one correspondence with each claw. The locking projection of the locking portion is clamped into the locking recess on the lower side of the horizontal part of the claw, so that the fuel pump can be fixed on the oil tank.

[0009] As a further improvement of the utility model, the chuck body and the fixed insert ring are coaxially arranged, the chuck body is located above the fixed insert ring and below the horizontal part of each claw.

[0010] As a further improvement of the utility model, the inner wall of each installation gap is arranged in staggered correspondence with the claw of each fixed insert ring, each installation driving portion is located between the two circumferentially adjacent claws of the fixed insert ring, the installation driving portion is arranged in outward protrusion, and the outer edge of the locking portion is arranged in correspondence with the vertical part of the claw. The installation gap facilitates the installation of the chuck body, the installation driving portion is moved in circumferential rotation between the two circumferentially adjacent claws, so that the chuck body is installed in place.

[0011] As a further improvement of the utility model, a driving gap is formed in the installation driving portion. A tool is clamped into the driving gap to drive the chuck body to rotate in the circumferential direction and be installed in place.

[0012] As a further improvement of the utility model, an upwardly protruding flange is arranged on the inner periphery of the chuck body. The fuel pump passes through the central hole of the annular flange. BRIEF DESCRIPTION OF DRAWINGS

[0013] Figure 1 The utility model discloses a structure schematic diagram.

[0014] Figure 2 The utility model discloses a schematic diagram of installing in fixed embedded ring.

[0015] Figure 3 The utility model discloses a schematic diagram of installing in fixed embedded ring.

[0016] Figure 4 The utility model discloses a structure schematic diagram of prior art chuck.

[0017] Among them, 1 chuck body, 2 installation gap, 3 installation drive part, 4 locking part, 5 locking protrusion, 6 fixed embedded ring, 7 claw, 7a horizontal part, 7b vertical part, 8 locking groove, 9 drive gap, 10 flange. Specific implementation

[0018] As Figures 1-3 As shown, it is a kind of light-weight fuel pump locking chuck, including annular chuck body 1, the outer periphery of chuck body 1 is provided with several groups of positioning assembly along the circumferential arrangement, the positioning assembly includes installation gap 2, installation drive part 3 and locking part 4 that are sequentially adjacent along the circumferential direction of annular chuck body 1, locking protrusion 5 is provided on locking part 4.The cross section of locking protrusion 5 is V-shaped.The locking part 4 of each positioning assembly on chuck body 1 is arranged with the abutment of installation gap 2 of adjacent positioning assembly.Drive gap 9 is opened in installation drive part 3.Installation tool is inserted into drive gap 9, drives chuck body 1 to rotate along the circumferential movement and installs in place.The inner periphery of chuck body 1 is provided with the flange 10 that protrudes upwards.Fuel pump passes through the center hole of annular flange 10.

[0019] Chuck body 1 is matched with fixed embedded ring 6 installed on oil tank body, and fixed embedded ring 6 is provided with several evenly distributed claws 7 along the circumferential direction, the cross section of claw 7 is L-shaped, the lower side of horizontal part 7a of claw 7 is provided with locking groove 8 corresponding with locking protrusion 5, and each locking part 4 is arranged corresponding with each claw 7.Locking protrusion 5 of locking part 4 is inserted into locking groove 8 on the lower side of horizontal part 7a of claw 7, so that fuel pump can be fixed on oil tank.Chuck body 1 and fixed embedded ring 6 are coaxially arranged, chuck body 1 is located above fixed embedded ring 6 and below horizontal part 7a of each claw 7.The inner wall of each installation gap 2 is staggered corresponding with each claw 7 of fixed embedded ring 6, and each installation drive part 3 is located between the corresponding circumferential adjacent two claws 7 of fixed embedded ring 6, and installation drive part 3 is outwardly protruding, and the outer edge of locking part 4 is arranged corresponding with vertical part 7b of claw 7.Installation gap 2 facilitates the installation of chuck body 1, and installation drive part 3 rotates and moves along the circumferential direction between the circumferentially adjacent two claws 7, so that chuck body 1 is installed in place.

[0020] The utility model discloses a locking chuck is coaxial installation on the fixed ring 6 of oil tank, installs, first the each installation gap 2 of chuck body 1 is placed with the each claw 7 of fixed ring 6 correspondingly, then clockwise rotation locking chuck, make the each locking portion 4 of chuck body 1 periphery rotation to the each claw 7 below of fixed ring 6, the locking projection 5 of locking portion 4 correspondingly is inserted into the locking recess 8 of the lower side of horizontal part 7a of corresponding claw 7, locking chuck is tightly installed on the fuel pump oil tank, completes the installation of fuel pump. Figure 4 Compared with the 245g of the mainstream locking chuck, the weight is reduced by 110g under the condition that the main function is unchanged, the outer diameter of the locking chuck part is reduced from the diameter 172MM to the diameter 161MM, the requirements of light weight and simplification are realized, the structure is more simplified, and the manufacturing cost is reduced.

[0021] The utility model discloses not limited to the above embodiment, on the basis of the technical scheme disclosed in the utility model, the skilled in the art can make some substitutions and deformation to some technical features in the disclosed technical content without creative labor, and the substitutions and deformation are all within the protection scope of the utility model.

Claims

1. A lightweight fuel pump locking chuck, comprising an annular chuck body, characterized in that, The outer periphery of the chuck body is provided with several sets of positioning components arranged circumferentially. The positioning components include an installation notch, an installation drive part and a locking part arranged sequentially adjacent to each other along the circumference of the annular chuck body. The locking part is provided with a locking protrusion.

2. The lightweight fuel pump locking chuck according to claim 1, characterized in that, The locking part of each positioning component on the chuck body is abutted against the mounting notch of the adjacent positioning component.

3. A lightweight fuel pump locking chuck according to claim 1 or 2, characterized in that, The chuck body is matched with the fixed ring installed on the oil tank body. The fixed ring is provided with a number of circumferentially distributed claws. The cross-section of the claws is L-shaped. The lower side of the horizontal part of the claws is provided with a locking groove corresponding to the locking protrusion. Each locking part is provided in a one-to-one correspondence with each claw.

4. A lightweight fuel pump locking chuck according to claim 3, characterized in that, The chuck body and the fixed insert ring are coaxially arranged, with the chuck body located above the fixed insert ring and below the horizontal part of each jaw.

5. A lightweight fuel pump locking chuck according to claim 4, characterized in that, The inner wall of each mounting notch is offset from the claw of each fixing ring. Each mounting drive part is located between two circumferentially adjacent claws of the fixing ring. The mounting drive part protrudes outward, and the outer edge of the locking part is corresponding to the vertical part of the claw.

6. A lightweight fuel pump locking chuck according to claim 1 or 2, characterized in that, The mounting drive unit has a drive notch.

7. A lightweight fuel pump locking chuck according to claim 1 or 2, characterized in that, The inner circumference of the chuck body is provided with an upwardly protruding flange.

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